TW201448416A - Assembly type stator and its manufacturing method - Google Patents

Abstract

The present invention discloses an assembly type stator for use in the internal rotation type motor and power generator. The assembly type stator includes: an inner stator, a plurality of coils and an outer stator. The inner stator includes a plurality of single magnetic pole strips, each single magnetic pole strip having a winding part, an enclosing part and an embedding part. The embedding part is disposed at one end of the winding part, and the enclosing part is disposed at the other end of the winding part. The outer surface of the winding part, the inner side surface of the embedding part and the outer side surface of the enclosing part are employed to form a winding surface. A mold fixing layer is coated to the winding surface of each single magnetic pole strip and an adjacent space between the enclosing parts, so as to form an inner stator with a closed structure. The plurality of coils are wound around the winding surface of each single magnetic pole strip in an external winding manner. The outer stator has a closed structure. The outer stator is assembled with the inner stator to constitute an assembly type stator for use in the internal rotation type motor and power generator.

Description

Combined stator and manufacturing method thereof

The present invention relates to a stator for an internal rotation motor and a generator, and more particularly to a combined stator and a method of manufacturing the same.

According to the general brushless motor and the generator, the rotor and the stator are included, wherein the stator is a fixed part, and the rotor is a rotatable part, and the stator and the rotor are driven by an electronic speed transmission (Electronic Speed Control) , ECS) current commutation of the coil, using the magnetic field and the magnet to repel each other, attracting kinetic energy to drive the rotor to wind. Generally, the rotor of the brushless motor is a permanent magnet, and the stator is an electromagnet wound around the coil, and the brushless motor can be divided into an external rotation type and an internal rotation type according to the winding manner of the rotor.

The rotor of the conventional externally-rotating motor is a casing provided with a permanent magnet, the rotor is disposed on the outer edge of the stator and wound, and the inner-rotating motor is opposite to the external-rotating motor, and the rotor is disposed inside the stator and wound. Since the motion inertia of the inner-rotating rotor is smaller than that of the outer-rotating rotor, the rotational speed of the motor is high, and the inner-rotating electromagnet stator is disposed close to the outer side, and the heat source of the coil can be easily dissipated. In the air, the internal rotation motor has better performance.

As shown in Fig. 1, it shows a stator 200 of a conventional internal rotation type motor. Since the stator 200 of the internal rotation motor has an annular closed configuration, the inner diameter of the stator 200 must be wound up and down in the longitudinal direction of the mechanical arm of the winding machine, and the stator 200 needs to be rotated left and right to assist the copper wire to be wound into the wire groove (inside) Around the inside). This kind of winding operation is complicated and the working time is long, which not only affects the production volume of the product. The inner diameter of the stator needs to be matched with the specifications of the winding machine, and it is difficult to miniaturize. The larger gap between the grooves causes the magnetic flux density to decrease. Sound product performance.

Accordingly, the main object of the present invention is to provide a combined stator and a method of manufacturing the same to solve the problem of lengthy work of the stator winding operation of the conventional internal rotation motor and the generator.

The technical means adopted by the present invention to solve the problems of the prior art is to provide a combined stator for use in an internal rotation motor and a generator, comprising: an inner stator including a plurality of single magnetic pole strips, each The single magnetic pole strip has a winding portion, a surrounding portion and a fitting portion, the fitting portion is located at one end of the winding portion, the surrounding portion is located at the other end of the winding portion, and the outer surface of the winding portion is fitted The inner surface of the portion and the outer surface of the enclosure form a winding surface, and a mold layer covers the winding surface of each single pole strip and the adjacent space between the enclosures to form a closed configuration. An inner stator; a plurality of coils wound around the winding surface of each single pole strip in an outer winding manner; and an outer stator, the outer stator is in a closed configuration, and the outer stator is combined with the inner stator to form an inner turn Combined stator of motor and generator.

According to an embodiment of the invention, the outer stator has a plurality of inner edge portions, and each inner edge portion is correspondingly formed on each of the inner stator portions.

According to an embodiment of the invention, each of the single magnetic pole strips has a "work" shape, the fitting portion of the single magnetic pole strip is a long arc block, and the enclosed portion is a short arc block.

According to an embodiment of the invention, each single pole strip is arranged in a lined manner.

According to an embodiment of the invention, the mold layer is a plasticized composite mold layer.

Another technical means for solving the problems of the prior art is to provide a method for manufacturing a combined stator, comprising the steps of: (a) providing a plurality of single magnetic pole strips, each single magnetic pole strip having a winding portion a fitting portion and a fitting portion, the fitting portion is located at one end of the winding portion, and the surrounding portion is located at the other end of the winding portion, and The outer surface of the winding portion, the inner side surface of the fitting portion, and the outer side surface of the surrounding portion form a winding surface; (b) the winding surface of each single magnetic pole strip and the surrounding portion are formed by a molding method An adjacent space is coated to form an inner stator of a closed configuration; (c) the winding is wound around the winding surface of each single pole strip; and (d) the inner stator is coupled to an outer stator A combined stator for the motor and generator is formed.

According to an embodiment of the invention, wherein in step (b), each of the single magnetic pole strips is arranged in an enclosed portion.

According to an embodiment of the invention, the molding method is to form a molded layer from the plasticized composite material.

According to an embodiment of the present invention, in the step (d), the outer stator has a plurality of inner edge portions, and each inner edge portion is correspondingly formed on each of the inner stator portions.

By means of the technical means adopted by the present invention, a plurality of single magnetic pole strips are formed in a wound manner to wrap the inner stator of the coil in a wound manner, thereby shortening the winding operation time of the inner rotating motor and the stator of the generator, and further Improve the production speed of the product. Furthermore, the user only needs to make a single magnetic pole strip of simple shape and combine it to form an inner stator, which can save mold development cost. In addition, since the inner stator is designed to wrap the coil in an outer winding manner, the inner diameter of the inner stator does not need to be matched with the winding machine specifications, which not only makes the product easy to miniaturize, but also makes the product more efficient.

The specific embodiments of the present invention will be further described by the following examples and the accompanying drawings.

100‧‧‧Combined stator

1‧‧‧ inner stator

11‧‧‧Single pole strip

111‧‧‧Winding Department

112‧‧‧Enclosure

113‧‧‧Mate

12‧‧‧Molded layer

2‧‧‧ coil

3‧‧‧Outer stator

31‧‧‧Inner rim

1 is a schematic view showing a conventional stator; FIG. 2 is a schematic view showing a plurality of single magnetic pole strips according to an embodiment of the present invention; and FIG. 3 is a schematic view showing an inner stator according to an embodiment of the present invention; 4 is a schematic view showing an outer stator of an embodiment of the present invention; and FIG. 5 is a combination of an outer stator and an inner stator according to an embodiment of the present invention; Schematic diagram of a stator; Fig. 6 is a flow chart showing a method of manufacturing a combined stator according to an embodiment of the present invention.

Referring to FIGS. 2 to 5 , a combined stator 100 is used in an internal rotation motor and a generator, and includes an inner stator 1 , a plurality of coils 2 , and a stator according to an embodiment of the present invention. Outer stator 3. A plurality of coils 2 are wound around the inner stator 1, and the inner stator 1 and the outer stator 3 are combined to form a combined stator 100.

The inner stator 1 includes a plurality of single pole strips 11 and a mold layer 12. The single magnetic pole strip 11 is a "work" type. Each single pole strip 11 has a winding portion 111, a surrounding portion 112 and a fitting portion 113. The winding portion 111 is an elongated block, and the fitting portion 113 extends outward from one end of the winding portion 111 to form a long arc. The enclosure portion 112 extends inward from the other end of the winding portion 111 to form a short arc.

In the present embodiment, the winding portion 111 of the single magnetic pole strip 11 and the fitting portion 113 are integrally formed. However, the single magnetic pole strip 11 may be a combination of a plurality of components, for example, a screw hole is provided at both ends of the winding portion 111, and the surrounding portion 112 and the fitting portion 113 are respectively screwed to the screw holes at both ends of the winding portion 111, or The winding portion 111 enclosing portion 112 and the fitting portion 113 are joined into a single magnetic pole strip 11 by a snap, a pin or the like.

The outer surface of the winding portion 111, the surface facing the inner side of the fitting portion 113, and the surface of the surrounding portion 112 facing the outer surface are formed with a winding surface S which is in direct contact with the coil 2. The mold layer 12 is formed by molding, covering the winding surface S of each single pole strip 11 and the adjacent space between the surrounding portions 112 to form the inner stator 1 having an inner diameter of an annular closed configuration. The material of the mold layer 12 is a plasticized composite material such as, but not limited to, epoxy resin, silicone rubber or polyurethane (PU glue). By coating the mold layer 12 with the winding surface S of each single pole strip 11 and the adjacent space between the enclosures 112, in addition to fixing each single pole strip 11 to form the inner stator 1, it is also possible to form the inner stator 1 At the same time, the coil 2 is insulated from the winding surface S, and the insulating sheet is additionally provided on the coil 2 Between the winding surface S and the winding surface.

The outer stator 3 is an annular closed configuration having a plurality of inner edge portions 31. Each of the inner edge portions 31 is correspondingly formed on each of the fitting portions 113 of the inner stator 1, so that the outer stator 3 can increase the contact force by matching the shape of the inner edge portion 31 with each of the fitting portions 113, so that The outer stator 3 and the inner stator 1 are tightly engaged. However, the shape of the outer stator 3 is not limited to the annular closed configuration, and may be a ring having a notch rather than a closed configuration, thereby facilitating dissipation of thermal energy of the combined stator 100.

Continuing to refer to Fig. 6, a method of manufacturing a combined stator according to an embodiment of the present invention first provides a plurality of single magnetic pole strips 11 (step S1). The structure of the single magnetic pole strip 11 has been mentioned in the foregoing paragraph and will not be described herein. Preferably, the single pole strip 11 is formed by pressing a silicon steel sheet, and has a good magnetic permeability to better performance during operation.

Then, each of the single magnetic pole strips 11 is arranged in the enclosing portion 112 to cover the winding surface S of each single magnetic pole strip 11 and the adjacent space between the surrounding portions 112 in a molding manner. An inner stator 1 of a closed configuration is formed (step S2). As shown in Fig. 2, in the arrangement, it is preferable to arrange the enclosing portions 112 of each of the single magnetic pole strips 11 in a ring shape, and to have a better magnetic flux during operation. In this embodiment, the molding method is to place each single magnetic pole strip 11 arranged in a mold (not shown), and fill the mold with a plasticized composite material such as epoxy resin, silicone rubber or polyurethane. The plasticized composite material is coated on the winding surface S of each single magnetic pole strip 11 and the adjacent space between the surrounding portions 112, and then the plasticized composite material is heated by low temperature rapid cooling or high temperature baking. Curing to the mold layer 12. The mold layer 12 can not only fix each single pole strip 11 to form the inner stator 1, but also the mold layer 12 overlies the winding surface S of the coil 2 to achieve the effect of insulating the coil 2 from the single pole strip 11. By the step S2, the user only needs to fabricate and combine the single magnetic pole strips 11 of simple shape to form the inner stator 1, and the mold development cost can be saved.

Next, the coil 2 is wound around the winding surface S of each single magnetic pole strip 11 in an outer winding manner (step S3). Each of the fitting portions 113 of the stator is completed in step S2. There is a gap between the spaces, so that the coil 2 can be wound from the gap between each of the fitting portions 113 in a winding manner around the winding, and wound around the winding surface S of each of the single magnetic pole strips. Since the winding operation time of the outer winding type is shorter than that of the inner winding type, the production speed of the product can be improved.

Finally, the inner stator 1 is combined with the outer stator 3 to constitute a combined stator 100 for an inner-rotating motor and a generator (step S4). In the present embodiment, the outer stator 3 has a plurality of inner edge portions 31, and each inner edge portion 31 is correspondingly formed on each of the inner fitting portions 113 so that the outer stator 11 and the inner stator 13 are stuck. Together, they form a combined inner stator 100. However, the outer stator 3 may be provided with a thread on the inner surface to be screwed to the inner stator 1, or the outer stator 3 and the inner stator 1 may be simultaneously fixed by screws, bolts or the like, and the present invention is not limited thereto.

As described above, the combined stator 100 of the present invention is formed by combining a plurality of single magnetic pole strips 11 in a moldable manner so as to be wound around the stator 2 in a wraparound manner, and then the inner stator 1 and the outer stator are finished. The combination of the three to form the combined stator 100 for the internal rotation motor and the generator not only shortens the winding operation time of the inner rotation type motor and the stator of the generator, but also makes the stator further increase the production speed of the product. Furthermore, the user only needs to fabricate and combine the single magnetic pole strips 11 of simple shape to form the inner stator 1, and the mold development cost can be saved. In addition, since the coil can be wound by the outer winding type, the inner diameter of the inner stator 1 does not need to be matched with the winding machine specifications, and the product is easy to be miniaturized, and the product operation efficiency is better.

The above description is only for the preferred embodiment of the present invention, and those skilled in the art can make other improvements according to the above description, but these changes still belong to the creative spirit of the present invention and the patents defined below. In the scope.

100‧‧‧Combined stator

1‧‧‧ inner stator

11‧‧‧Single pole strip

112‧‧‧Enclosure

113‧‧‧Mate

12‧‧‧Molded layer

2‧‧‧ coil

3‧‧‧Outer stator

31‧‧‧Inner rim

Claims (7)

A combined stator for use in an internal rotation motor and a generator, comprising: an inner stator comprising a plurality of single magnetic pole strips, each of the single magnetic pole strips having a winding portion, a surrounding portion and a a fitting portion located at one end of the winding portion, the surrounding portion being located at the other end of the winding portion, and an outer surface of the winding portion, an inner side surface of the fitting portion, and the surrounding portion The outer surface forms a winding surface, a mold layer covers the winding surface of each single magnetic pole strip and an adjacent space between the surrounding portions to form an inner stator of a closed configuration; a coil wound around the winding surface of each of the single magnetic pole strips; and an outer stator having a closed configuration, the outer stator being combined with the inner stator for internal rotation The combined stator of the motor and the generator. The combined stator according to claim 1, wherein the outer stator has a plurality of inner edge portions, and each of the inner edge portions is correspondingly formed on each of the fitting portions of the inner stator. The combined stator according to claim 1, wherein the single magnetic pole strips are of the "work" shape, the fitting portion of the single magnetic pole strip is a long arc block, and the enclosed portion is a short arc. Piece. The combined stator of claim 1, wherein the mold layer is a plasticized composite mold layer. A method for manufacturing a combined stator includes the steps of: (a) providing a plurality of single magnetic pole strips, each of the single magnetic pole strips having a winding portion, a surrounding portion and a fitting portion, the fitting portion being located One end of the winding portion, the surrounding portion is located at the other end of the winding portion, and the outer surface of the winding portion, the inner surface of the fitting portion, and the outer surface of the surrounding portion form a winding surface; Providing a winding surface of each single magnetic pole strip and an adjacent space between the surrounding portions in a molding manner to form an inner stator of a closed configuration; (c) an outer winding manner Winding a coil on the winding surface of each of the single pole strips; (d) Combining the inner stator with an outer stator to form a combined stator for the inner-rotating motor and the generator. The manufacturing method according to claim 5, wherein in the step (b), the molding method is to form a molded layer from the plasticized composite material. The manufacturing method according to claim 5, wherein in the step (d), the outer stator has a plurality of inner edge portions, and each of the inner edge portions is correspondingly formed on each of the inner fitting portions .